diff --git a/src/Space.php b/src/Space.php
index 66ad5b6..4cb7beb 100644
--- a/src/Space.php
+++ b/src/Space.php
@@ -303,6 +303,9 @@ public function migrate()
         $source = $this->constructor ? $constructor->getParameters() : $reflection->getProperties();
 
         foreach ($source as $property) {
+            if (in_array($property->getName(), $this->fields)) {
+                continue;
+            }
             $tarantoolType = match ((string) $property->getType()) {
                 'bool' => 'boolean',
                 'float' => 'number',
diff --git a/tests/MapperTest.php b/tests/MapperTest.php
index a82ba3c..9726852 100644
--- a/tests/MapperTest.php
+++ b/tests/MapperTest.php
@@ -140,6 +140,7 @@ public function testSpaces()
             $space = $mapper->createSpace($name);
             $space->setClass($type);
             $space->migrate();
+            $space->migrate();
 
             $this->assertSame($space, $mapper->createSpace($name, ['if_not_exists' => true]));
             $this->assertSame($space, $mapper->getSpace($space->getId()));